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Physics Forces Review
Physics Forces Review
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A #physics review on Newton's laws and forces
Flashcards
29 cards
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Practice quiz
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Questions
29
Answers
1
(Question #11) What is the acceleration of the backpack?
.125 m/s2
1.25 m/s2
2.5 m/s2
.52 m/s2
2
(Question #10) What is F
fric
on the crate?
973 N
793 N
397 N
379 N
3
(Problem #6) What is the F
thrust
?
28.5 N
5.82 N
8.52 N
2.58 N
4
(Problem # 8) What is F
net
?
15 N, left
15 N, right
10 N, right
10 N, left
5
Which one of Newton's Laws explains why a rocket can launch when gas rushes out the bottom?
First law of motion
Third law of motion
Either the first or third laws
Second law of motion
6
A book is at rest on a table. According to Newton's first law of motion, why is it not moving?
The book lacks the ability to move on its own.
No net force is acting on the book.
The table is pushing on the book
No forces are acting on the book.
7
What is the tendency of an object to resist change in its motion is...
Force
Intertia
Acceleration
Weight
8
(Problem #1) What is the mass and what is the weight?
Weight = 86 N; Mass = 137.5 kg
Weight = 86 kg; Mass = 137.5 N
Mass = 86 kg; Weight = 137.5 N
Mass = 86 N; Weight = 137.5 kg
9
(Question #11) What is the F
x
of the force?
.52 N
2.5 N
.25 N
5.2 m/s2
10
(Problem 4a) Which forces are acting on the sledder?
Normal, Gravity, Applied
Normal, Gravity, Friction
Normal, Gravity, Friction, Applied
Normal, Gravity, Tensions
11
(Question #10) What is F
x
component of the force?
559.8 N
859.5 N
955.8 N
595.8 N
12
(Question #10) What is F
grav
on the crate?
1,099 N
9,091 N
9,901 N
1, 909 N
13
(Problem #3) What is Sophia's acceleration?
63.4 m/s2
93,600 m/s2
43.6 m/s2
34.6 m/s2
14
(Problem #5) What is F
net
?
601 N
60.1 N
10.6 N
106 N
15
(Problem #2) What is the force?
3,600 N
36,900 N
82 N
360 N
16
(Problem # 8) What is F
grav
and F
norm
?
32.9 N
39.2 N
29.3 N
93.2 N
17
(Problem #5) What is the acceleration of the piano?
6.7 m/s2
.76 m/s2
7.6 m/s2
.67 m/s2
18
(Question #11) What is the F
net
of the backpack?
2.5 N
5.2 m/s2
.25 N
.52 N
19
(Problem # 8) What is F
fric
?
51 N
15 N
53 N
35 N
20
(Problem #6) What is the F
net
on the model rocket?
8.4 N down
4.8 N up
4.8 N down
8.4 N up
21
(Problem #6) What is the F
grav
acting on the model rocket?
.012 N
10.02 N
1.02 N
.104 kg
22
(Problem # 8) What is μ (coefficient of friction)?
.83
.38
6.12
2.61
23
(Problem #4b) Which forces are acting on the skydiver?
Gravity only
Gravity, Air
Gravity, Air, Normal
Gravity, Friction, Normal
24
(Question #10) What is the acceleration
of the crate?
10.5 m/s2
3.15 m/s2
5.13 m/s2
1.35 m/s2
25
(Question #10) What is F
norm
on the crate?
226.9 N
269.2 N
692.2 N
962.2 N
26
_________ changes depending on location, _________ stays the same wherever you are
Mass; Weight
Weight; Mass
27
(Question #11) What is the F
app
?
9.2 N
.29 N
.92 N
2.9 N
28
(Problem #4c) What forces are acting on the dresser?
Gravity, applied, friction
Gravity, normal, tension
Gravity, normal, friction, applied
Gravity, normal, applied
29
(Question #10) What is F
y
component of the force?
604.8 N
864 N
406.8 N
648 N
